Instructions / Assembly

MAINTENANCE CS-400

42 X7503255900

• Certain internal combustion engines operated on forest, brush, and/or grass-

covered areas in the states of Washington, Oregon, Idaho, California,

Minnesota, New Jersey and Maine, are required to be equipped with a spark

arrestor.

This requirement also applies to all U.S. Forest Service lands. In some of these

areas, the spark arrestor system must be certified per USDA Forest Service

Regulation SAE J335.

Check with your local or state authorities for specific regulations in your area.

Failure to follow these requirements is a violation of the law.

Spark Arrestor Screen

Carbon deposits in muffler will cause drop in engine output and

overheating. Spark arrestor screen must be checked periodically.

1. Remove air cleaner cover and

remove spark plug lead.

2. Remove spark arrestor cover (C) and

screen (B) from muffler (A) body.

3. Clean carbon deposits from muffler

components.

4. Replace screen if it is cracked, or

has holes burned through.

5. Assemble components in reverse order.

Note: When cleaning carbon deposit, be careful not to damage the

catalytic element inside muffler.

Exhaust Port Cleaning

Level 2.

1. Remove air cleaner cover and

remove spark plug lead.

2. Remove engine cover.

3. Place piston at top dead center.

4. Remove muffler. Check parts for

wear or damage, and replace if

necessary.

Parts Required: As needed: Muffler gasket